Sign board



FIG. 1 is a front perspective view of a sign board showing my new design;

FIG. 2 is a front perspective view of a second embodiment of my new design;

FIG. 3 is a top plan view of the embodiment shown in FIG. 1, the bottom plan view being a mirror image;

FIG. 4 is an end elevational view of the embodiment shown in FIG. 1, the opposite end view being a mirror image;

FIG. 5 is an enlarged fragmentary perspective view of the bottom left corner thereof showing details common to both embodiments; and

FIG. 6 is an enlarged fragmentary perspective view of the top left corner thereof showing details common to both embodiments. 

The ornamental design for a sign board, as shown and described. 